{volist name="data" id="vo"}
<li style="float:left;padding-left:10px;position: relative">
    <a href="{:url('admin/Moduleshop/index',['catid'=>$vo['diyname']])}" {if ($catid==$vo['diyname'])} style="color: #333333"{/if}>{$vo.name}</a>
    {if (!empty($vo['child_arr']))}
    <span class="showul"><i class="fa fa-toggle-down"></i></span>
    <ul class="sonul">
        {volist name="$vo['child_arr']" id="vv"}
        <li><a href="{:url('admin/Moduleshop/index',['catid'=>$vv['diyname']])}">{$vv.name}</a></li>
        {/volist}
    </ul>
    {/if}
</li>
{/volist}